Home / 38,770.56-58,107.06-21,000.54

Finding the Fourth Proportional to 38,770.56, 58,107.06 and 21,000.54

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Solution

The fourth proportional to 38,770.56, 58,107.06 and 21,000.54 is: 31,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,770.56 : 58,107.06 = 21,000.54 : x
  2. Step 2: Convert to fraction form
    38,770.56/58,107.06 = 21,000.54/x
  3. Step 3: Cross multiply
    38,770.56x = 58,107.06 × 21,000.54
  4. Step 4: Simplify right side
    38,770.56x = 1,220,279,637.81
  5. Step 5: Solve for x
    x = 1,220,279,637.81/38,770.56
  6. Step 6: Final answer
    x = 31,474.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.